Pulse Oximeters

Pulse oximeters are devices that measure blood oxygen saturation by beaming infrared light to a photodiode through a translucent part of the user's body - usually a finger or an earlobe. The user's oxygenated hemoglobin absorbs some of the infrared light, and by measuring the light remaining when it is received by the photodiode, a pulse oximeter is able to determine a percentage of the blood oxygen saturation in a user's body.

1. Overview

This document contains an overview of suggested operating parameters for the OctiveTech series of Finger Pulse Oximeters. This document is intended to be a guide only, and should not be used as a substitute for clinical diagnosis performed by a licensed practitioner.

2. Extended Specifications

Spo2 Measurements

Pulse Rate

Range: 0% - 100% Resolution: 1%

30-254 BPM Resolution: ±1bpm

Accuracy: 80% - 99%, ±2%

Accuracy: ±2bpm or ±2%

Accuracy: 70% - 79%, ±3%

Accuracy: 0% - 69%, unspecified

3. Measurement Interpretation

This section contains a guideline on various levels of blood oxygen and heart rate that are within tolerable ranges.

3.1 Oxygen Saturation

Measurement

Critical

Notes

Spo2 > 95%

N

Normal healthy individual

Spo2 91% - 95%

N

Clinically acceptable, but low. Patient may be a smoker, or be unhealthy.

Spo2 70% - 90%

Y

Hypoxemia. Unhealthy and unsafe level.

Spo2 < 70%

Y

Extreme lack of oxygen, ischemic diseases may occur. The OctiveTech 300-series of Oximeters is not calibrated to detect readings lower than 70%.